Whatsapp is a popular instant messenger. It is used by millions of people around the world. It allows you to send photos, videos for free, and this makes this application popular and convenient to use. All you need to send SMS, video and audio recordings is an internet connection.

 The KMPlayer is a convenient audio and video player with which you can watch movies, clips and indeed any videos on any device. Supported on Microsoft Window, macOS, Android, iOS. This application supports almost all multimedia formats from existing ones. For example: FLV, DVD, ASF, VCD, MKV, OGM, AVS, 3GP and others.

Many on the device already have a built-in video player, but, unlike KMPlayer, it does not have all the necessary codecs installed, so various errors often occur. In addition, in this application there are still many different functions and features.

 It’s hard to imagine a person who hasn’t heard about Skype. In the modern age of information technology, the concept of distance between people has already become somewhat blurred, because to communicate with each other no personal meetings, postal correspondence, etc. are necessary, simply call. The creation of Estonian developers made a revolutionary breakthrough in this area, because not only were we given the opportunity to make free calls to anywhere in the world via the Internet, but we can also see each other through a webcam.

 Chromium is Google’s secure and fast open source web browser. The browser is free to use and does not require registration from Google. Chromium is suitable for any operating system - for Windows, macOS, Debian and Ubuntu platforms. The browser has a convenient platform for web applications. The very first version of the browser was introduced on September 2, 2008.

Chromium browser management is completely based on Firefox browser, so when working with this program, everything is convenient and clear. The browser has a very good Incognito Window feature. This window does not save any browsing history or query history. In this window, the browser does not use cookies. But you can save the desired page in bookmarks, as well as save files.

 With the advent of the global Internet, specialists began to struggle with pirated services that offered free listening and downloading music. Today, we have many applications that legally provide tracks for every taste. Among them: Spotify, Apple music, "Yandex Music", "Google Play Music", Deezer.

Let us dwell on the latter.

Deezer is an application for listening to music tracks. Thanks to him, now the whole universe of favorite music is collected in one service. Deezer is well established in the Russian market and can please its subscribers with its huge audio library: there are more than 42 million audio tracks in the database, and those who like to listen to new things can click on the "Flow" button and go on an unknown journey.

 The functionality of the Viber application is like Skype, with the only difference being that Viber is designed as a mobile application for a smartphone. But still, multi-platform.

With the help of Viber, the cost of calls and SMS messages will be reduced, just connect the mobile Internet.

Application service as a competitive advantage flag.

 Adobe Reader is a freeware program for viewing, commenting and printing PDF (Portable Document Format) files. The PDF format is a cross-platform universal document format that is supported by all existing modern systems. It was originally created by Adobe Systems for the transfer of printed products. Currently, this format has become a generally accepted standard for the transfer of documents, this format produces various manuals and references, e-books, magazines, booklets and much more. The main advantage of the PDF format is that on any device the content and structure of the document will be displayed in the same way as on the device on which it was created. Therefore, any user just needs a program to read this format.